refactor: 重构设置对话框的API调用逻辑，优化错误处理和默认设置初始化

js/publisher.js

@@ -349,27 +349,25 @@ app.registerExtension({
     }
     async function showSettingsDialog() {
       try {
-        const resp = await api.fetchApi("/publisher/settings", {
+        let settings = { api_url: "", host: "" };
-          cache: "no-store",
-        });
-        if (!resp.ok) {
-          throw new Error(`服务器错误: ${resp.status} ${resp.statusText}`);
-        }
-        const text = await resp.text();
-        let settings;
-        try {
-          settings = text ? JSON.parse(text) : {};
-        } catch (parseError) {
-          console.error("JSON解析失败:", parseError, "原始响应:", text);
-          settings = { api_url: "", host: "" };
-        }
 
-        // 确保设置对象有必需的字段
+        await api
-        settings = {
+          .fetchApi("/publisher/settings", {
-          api_url: settings.api_url || "",
+            cache: "no-store",
-          host: settings.host || "",
+          })
-          ...settings,
+          .then(async (resp) => {
-        };
+            if (!resp.ok) {
+              console.error(`服务器错误: ${resp.status} ${resp.statusText}`);
+              return;
+            }
+            const text = await resp.text();
+            try {
+              settings = text ? JSON.parse(text) : {};
+            } catch (parseError) {
+              console.error("JSON解析失败:", parseError, "原始响应:", text);
+              settings = { api_url: "", host: "" };
+            }
+          });
 
         settingsDialog.setContent(`
                     <label for="publisher-host" style="display: block; margin-bottom: 5px;">Host:</label>